Machine for working hides and skins



s sheets-sheen 1; G. W. BAKER. MACHINE PON WORKING HIDBS AND SKINS.

(No Model.)

Patented May 23, 1893.

6 Sheets-Sheet 2.'

G. W. BAKER.

MACHINE FOR WORKING HIDES AND SKINS.

(No Model.)

Patented May 23, 1893.

il? A All n i EWI m llllllllll.

114;, Qmyncy `(No Model.) 6 sheets-sheet s.

G. W. BAKER. MACHINE PQR WORKING HIDBS AND SKINS. No. 497,941.

Patented May 23, 1893.

(No Model.) 6 Sheets-Sheet 4.

G. W. BAKER.

MACHINE PON WORKING HIDES AND SKINS. No. 497,941. Patent-,ed"Mayv 23, 1893.`

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6 Sheets-Sheet 5.

Patented May 23, l1893.

G. W. BAKER.

MACHINE FON WORKING HIDBS AND SKINS. No. 497,941.

(No Model.)

(No Model.) v i 6 Sheets--Sheet 6.

. G. W. BAKER; Y MACHINE Ifo WORKING HIDEsfAND SKINS. No. 497,941. Patented May 23,11893.

. bodying my invention.

UNTTED STATES PATIENT OFFICE.

GEORGE W. BAKER, OF VILMINGTON, DELAWARE.

MACHINE FORTWORKING HIDES AND SKINS.

SPECIFICATION forming part of Letters Patent Nd. 497,941, dated May 28, 1893.

Application filed August 16, 1892. Serial No. 443,219. (No model.)

To all whom it may concern:

Be it known that I, GEORGE W. BAKER, a citizen of the United States, and a resident of Wilmington, in the county of New Castle and State of Delaware, have invented certain new and useful Improvements in Machines for Working Hides and Skins; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specication.

Figure l is a plan view of a machine em- Fig. 2 is a side elevation of the salue. Fig. 3 is an end view of the same. Fig. 4t is a vertical transverse section on the line jij-y, Fig. 1. Fig. 5 is a vertical transverse section on the line w-w, Fig. l. Fig. `6 is a longitudinal vertical section on the line Fig. 1. Fig. 7 is a detail view of a portion of the scraping or cutting roll. Fig. 8 is a partial front view of a machine with grinding attachment for the knives or Scrapers. Fig. 9 is a vertical transverse sectionon the line LJ-c, Fig. 8. Fig. lO is a detail view of a part of the grinding attachment.

This invention has relation to certain new and useful improvements in machines for Working hides and skins, and it consists in the novel construction and combination of parts, all as hereinafter specified.

The invention is especially applicable to fleshing hides and skins, but may also be used for putting out and other treatment, and has more particularly for its object, the improvement of the method of arranging and operating the revolving cylinder which car ries the hides or skins under the knives or Scrapers; also the means for driving the dif ferent parts, as Well as the arrangement and operation of the machine as a Whole.

Referring to the accompanying drawings, illustrating the invention, the letter Z designates the supporting frame, which is of the proper form to provide bearings and supports for the various parts now to be described.

The letter A designates a drum or cylinder of the proper diameter, and supported longitudinally in the frame by its central shaft a with-which it is fast. Said shaft has bearings near its ends in swinging or rocking frames B, B, which will be more fully described hereinafter.

`C designates the main or driving shaft which is supported in boxes in the upper portion of the frame, parallel with the drum A, and centrally thereover. On one end of this shaft are the fast and loose pulleys D,D', and balance wheel E, and on the other end is a worm F, Whichis arranged to mesh with and drive a worm wheel F,on the upper portion of an oblique shaft G, journaled in bones ou the frame. On the lower portion of this shaft G is a bevel toothed Wheel G', which meshes with and drives a similar wheel G2 on ashaft H, which is journaled back of the drum A. Ou said shaft H fast to the bevel wheel G2 is a` gear wheel G3, which drives a large gear Wheel I on the end of the drum shaft, thus providing for the rotation of the drum in a direction oppositeto that ofthe main or driving shaft. Both said wheels G2, and G3 turn loosely on the shaft H.

The shaft H is provided with bearings in extensions Z of the frame, and inside of these extensions at each end, is located one of the swinging or rocking frames B, hereinbefore referred to. Said frames are of triangular form, as best shown in the drawings and pivot on the shaft H, from which as a center they rock or swing. In the lower apices of the triangles are located the bearings b for the drum shaft, and in the rear apices the bearingcfor the shaft H. The other corner of each frame has an upward extension J, in which are-supported the adjustable boxes c in which is` journaled the shaft K, of the grip or feed roll K. This roll or cylinder is located back of the main shaft and below it, above the periphery of the drum A, and its shaft is driven by a small gear Wheel, which meshes with the gear wheel I on said drum shaft, said roll being thereby driven oppositely to the shaft C. Said shaft C, above the periphery of the drum carries a cylinder having set therein a series of spiral knives or Scrapers f, having their direction reversed at the center of the cylinder. Near each end of the drum shaft and fast thereon isa cam L. These cams rest IOO and travel on rollers L which are supported in adjustable bearings M, the adjustment of which is effected by means of the screws M and springs m.

N is a treadle hung on the base of the machine, and connected by rods N with the rocking frames B. The drum A has a segment A removed therefrom, as indicated in the drawings, in order to facilitate the securing of the hides thereto, and to form a starting point for the knives or Scrapers to commence their work. The drum also has an elastic covering A2 of rubber, or other suitable material, and the feed roll K should also have a rough or fluted surface.

It will be apparent that by reason of the swinging or rocking frames,.the drumwill be capable .of a vertical movement with its shaft, toward or away from the knives or Scrapers, and that this movement will be imparted to it duri-ng its constant rotation by reason of the cams L traveling on the rollers Land that the distance to which it shall approach said knives or Scrapers when at its highest point, is determined by the adjustment ofthe said rollers. Owing to this fact, by means of. the screws .lVl the rollers may be adjusted so as to set the machine for a hide orskin of any thickness, and herein resides an impor-l tant feature of the invention. Inmanymachines itis necessary for the operator to con-x stantlyoperate the` vtreadle,.and there is dif-5 cultyin his keeping-a uniform pressurebn thetreadlein the absence of which thehide or skin is unevenly treated. By-the present arrangement, the drum is adjusted4 tothe. proper movement, and iszheldt-here, sothat,y the treadle need. only be` used in case of a' hide.

of unusual thinness. This leaves theoper-4 ator free to prepare a second hidefor the ma-.Y

chine while thefirst is being treatedthereby, and thus effects .a material saving of time, as well. as a uniform treatment. necessary that thehide or skin shallfbe caught by the feed roll or. cylinder beforeit isl acted. upon-bythe knives or Scrapers, inorder that it shallnot. be drawn from the `drum. The position of the camson vthe drum shaft is therefore suchthat vtheir lower .portions shall.' travel on therollers L until thehide or skin..

reaches thegrip roll.. At this time, thehigh:

portions of .the cams .ride upon the. A1ol1ers,. which. at once elevates .the drum, and .the knivesor Scrapers commence toact.. The worm.-

wheelF. is loosely sleevedon the shaft G, and the sleeve thereof is provided witha clutche section l).vl On the shaft is a similar sectionl P operated by theclutch lever. QP?.v Bythis. arrangement, the drumand feed roll may bethrown out of gear at will.

The boxes c may be adj usted. bymeans. .of

It is ofcourse- The.`

the operator. It will be observed that the opposite direction of the spiral knives or scrapers will prevent any puckerng ordrawingtoward the center of the hides or skins, and will also draw or stretch them. Y

The spiral knives from constant use, become round on their cutting edges, and in order to resharpen or bring them to the proper edge, a grinding attachment now to be described is provided. This attachment consists of two brackets U, U resting upon the main'stands of. the machine, and held apart by two rods or shafts U, which also act as guides for the grinder carriage V. Said grinder carriage is made to slide from side to side above the knifecylindcr,4 soas to op,- erat'e upon theentire lengthvof the knives. V is an emeryblock securelyeheld in the carriage, and which does thegrinding.4 The adjustment of this block. is effectedby means of the screw t.

In order that the operation may Vbeclearly understood, the following rsum anddescription thereof, maybe .givenzI-Thevparts being in the proper position, withthe Alower por; tions of the cams onf the.rollers-L; ,fthe.skin or hide is appliedto .thedrum bysecuring oneend portion to small. ihooksS, as seen 1in Figs. 5 and 9 or other. sui.table ..fastening means, within the cut-awaylportion A?. y As soon as the drum ,has revolved sufficiently for thehigherv portionsaof the camstoride upon the rollers L.,the.dr.um is elevat ed,.as.

hereinbefore. described, into position. for, .the f knives or vScrapers to commence.l theirA works.

The elevation of. the drummocks l thetrianguy; lar frames Bon theshaft -H,=and th erebyals0f raisesthe grip orfeed roll.K5,'wl1icll'Catches..v lthe hidel or skinjust. previous .toflhacorrh Scrapers, so that saidxhide. on skinyishallzinot; be drawn.fromthefdr.um.. By -thgtimefthat 1 portion of thehide or. skinwhichgislupon the..v

surface of. thedrum has .passed theknives or.

IIO

drumfalls.v The-.hide .oraskin-fisthen ref; moved, and replacedaend.for.;end,.in order.

that the portion ywhichwas.withinlthe cut-V partofthebperation, may .now. be treated.'-

i Having described thisfinvention, what I1..

claim, and .y .desire l.to secure-.by Letters-rlatent,

1.; In a machine .for treating hidesor skins,-

the .combination` with: the ,revolving drum. or..

cylinder, and. theoppositely drivemknivesor..

Scrapers, of. thetcams .fast .on.the.drum.shaft-, n,

the adjustable..rollers -.on` which said. lcams travel,.and means forv adjustingsaid rollers,..

substantially Ias specified.

2. In a.machinefon.treatingihides orlski'ns,A the combination with the revolvingfdrumfor.;

cylinder, the-.oppositely driven knivesbr scrapers,.and. :the driving gear, ofthe cams fast on thedrum shaft,the adjustable rollers..

on which said cams travel, and the adjustable feed roll, moving with said drum by the cfiperation of said cams, substantially as speci- 3. In a machine for treating hides or skins, the combination with the revolving drum or cylinder, the main driving shaft above said drum or cylinder, the series of oppositely directed spiral knives or scrapers on said shaft, and the adjustable feed roll, of the rocking or swinging frames in which the drum shaft and the feed roll shaft are journaled, the cams fast on said drum shaft, and the adjustable rolls on which said cams travel, substantially as specified.

4. In a machine for treating hides and skins, the combination with the main or driving shaft, the knife cylinder carried thereby, the revolving drum or cylinder below said knife cylinder, and the grip or feed roll to the rear of and between said knife cylinder and drum, of the worm on said main shaft, the oblique shaft having a worm wheel engaged by said worm, the shaft H having bevel gear driven from said oblique shaft, the gear wheel on said shaft II for driving said drum, and means for intermittently raising said drum and feed roll, substantially as specified.

5. In a machine for treatin g hides and skins,

the combination with the main shaft, and its series of oppositely directed spiral knives or Scrapers, of the drum havinga vertical movement toward and away from said knives or Scrapers, the adjustable feed roll, the swinging triangular frames in which said drum and feed roll shafts are journaled, the cams fast on the drum shaft, the adjustable rollers on which said cams travel, the adjusting devices for said rollers, the treadles connected to said swinging frames, substantially as specified.

6. The combination with the drum and feed roll, and the swinging frames carrying said drum and roll, of the cams fast on the drum shaft, and the rollers on which said cams travel, and means for adjusting said rollers,

the feed roll, the knife cylinder, and gear 45 mechanism whereby said knife cylinder is driven oppositely to said drum, and whereby the feed roll is driven oppositely to said knives, substantially as specified.

In testimony whereof I affix my signature in 5o presence of two witnesses.

GEORGE W. BAKER. Witnesses:

JULIUs MUELLER, JUSTIN SCHUNTZ. 

